3 ms·
This entirely ignores the problem of intermittency. The wind does not blow all the time and the sun does not shine all the time. To solve this, you will need gr
by _hypx 3y ago
This entirely ignores the problem of intermittency. The wind does not blow all the time and the sun does not shine all the time. To solve this, you will need grid energy storage.
The problem is that adds significant energy losses for a hypothetical car powered purely by renewable energy. In fact, it could be even greater than what it takes to power a hydrogen car. That is immediately obvious when you realize that the energy storage system is hydrogen in the first place.
Ultimately, people are just demonizing the inefficiencies of the hydrogen process while totally ignoring real-world losses for battery cars.
- _aavaa_ 3y agoIt is not demonizing to say that electric cars have a round trip efficiency of ~80% while round trip efficiencies for electrolosys->storage->fuel cell for anything outside of a lab is in the mid 30%.
- _hypx 3y agoExcept you are ignoring energy storage losses for BEVs. Take that into account and it drops to the same level as doing it with hydrogen. It also helps to stop living in the past with hydrogen. Efficiencies are significantly better than you are admitting.
- _aavaa_ 3y agoWhich energy storage losses am I ignoring? Perhaps mid 30% are living in the past. Do you have a reference for the round trip efficiency of a production hydrogen car?
- _hypx 3y agoWe’ve already had this conversation before. I’m not interested in repeating myself. You already have the knowledge the grasp the truth, provided you have any interest in doing so.